Hookdll and polling disabled and it seems to work. Thanks for the hint, I forgot that the cached bitmaps are also copied using drvcopybits. Ringbuffer of 100 was also to small, gets more than 1000/s. Bigger buffer solved the problem of bad updates. still to do 1) Driver need to check if the vncsite ringbuffer exist. _try or something. So driver could direct write to the vnc buffer. Now copy full buffer on each vnc updaterequest. 2) disable the region scanning on vnc site. Need some sleep know. Rudi --------------------------------------------------------------------- To unsubscribe, send a message with the line: unsubscribe vnc-list to [EMAIL PROTECTED] See also: http://www.uk.research.att.com/vnc/intouch.html ---------------------------------------------------------------------